Convertible adjustable zippered screen apparatus



FIG. 1 is a front elevational view of my design, shown with the screen in a partially unzipped position;

FIG. 2 is a top left perspective view of my design;

FIG. 3 is a right side elevational view of my design, the left side being a mirror image thereof;

FIG. 4 is a bottom plan view of my design;

FIG. 5 is a top plan view of my design;

FIG. 6 is a front elevational view of my design;

FIG. 7 is an enlarged fragmented front elevational view of the fastening mechanism illustrated at the upper left side of FIG. 6;

FIG. 8 is an enlarged fragmented front elevational view of the fastening mechanism, illustrated at the lower left side of FIG. 6, with the fastening mechanism in operation; and,

FIG. 9 is an enlarged fragmented front elevational view of the fastening mechanism illustrated at the upper center of FIG. 6. 

CLAIM The ornamental design for the convertible adjustable zippered screen apparatus, as shown and described. 